nswer the following questions in short:
1. Give three important uses of:
(a) Carbon dioxide
(b) Nitrogen
2. Which organisms need more energy-animals or plants? Give reasons.
Answers
carbon dioxide
Explanation:
it is used to make dry ice.
The answers are the following=
Answer=
carbon dioxide=Used by plants for photosynthesis.
Carbon dioxide gas is used in industries to produce chemicals and as feedstock.
Carbon dioxide gas is used to make urea (used as a fertilizer and in automobile systems and medicine), methanol, inorganic and organic carbonates, polyurethanes and sodium salicylate.
Nitrogen= Number 1. Food Preservation. Nitrogen for food packaging. ...
Number 2. Pharmaceuticals. Nitrogen is extensively used in the pharmaceutical industry. ...
Number 3. Manufacturing and Construction. ...
Number 4. Electronics. ...
Number 5. Stainless Steel.
(given 5 uses above you can write any.)
Ans.3=Yes, animal consume more energy than plants. Because animals do no. of functions which need more enery for instance plant doesn't move so they don't have need to utilize energy in movement while animals perform various functions which need more energy like locomotion, digestion, respiration etc.
Hope my answers will help you in doing your work.
thanks.